US3481552A - Film cartridge and spool and method of attaching film to the spool - Google Patents

Film cartridge and spool and method of attaching film to the spool Download PDF

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Publication number
US3481552A
US3481552A US719897A US3481552DA US3481552A US 3481552 A US3481552 A US 3481552A US 719897 A US719897 A US 719897A US 3481552D A US3481552D A US 3481552DA US 3481552 A US3481552 A US 3481552A
Authority
US
United States
Prior art keywords
film
spool
cartridge
slot
core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US719897A
Other languages
English (en)
Inventor
Josef Gersch
Max Wiesner
Franz Hoffacker
Hans-Joachim Barke
Heinz Johanns
Fritz Kreckeler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agfa Gevaert AG filed Critical Agfa Gevaert AG
Application granted granted Critical
Publication of US3481552A publication Critical patent/US3481552A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/28—Locating light-sensitive material within camera
    • G03B17/30—Locating spools or other rotatable holders of coiled film
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2217/00—Details of cameras or camera bodies; Accessories therefor
    • G03B2217/26—Holders for containing light-sensitive material and adapted to be inserted within the camera
    • G03B2217/261—Details of spools
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2217/00—Details of cameras or camera bodies; Accessories therefor
    • G03B2217/26—Holders for containing light-sensitive material and adapted to be inserted within the camera
    • G03B2217/265—Details of light-proofing

Definitions

  • the present invention relates to a film spool with an associated film cartridge, more especially for use with miniature films, and to a method for fixing the end of the film on the spool inside the cartridge.
  • the film cartridge is provided with a jaw for the film, and the film spool has a core comprising a slot which extends therethrough in which are arranged holding projections with securing means for fixing the perforated end of a film.
  • the invention also provides a method of threading and fixing the film inside the cartridge, using the film spool according to the invention with its associated cartridge.
  • the end of the film can be fixed inside the cartridge on the spool by forming the core of the film spool with at least one flattened surface, the position of which is adapted to be controlled by a marking which can be seen on the film spool.
  • the film core is provided with two flattened surfaces parallel to the slot, so that the operation of adjusting the film spool in relation to the cartridge jaw or mouth proceeds more quickly.
  • the method according to the invention is characterised in that the flattened portion or one of the flattened portions is adjusted at a predetermined angle to the cartridge mouth and then the film is pushed in until it strikes against the flattened surface. The film spool is then rotated until the end of the film jumps into the slot. The film is then pushed in, hooked on and finally wound.
  • a suitable angle for the position of the flattened portion relatively to the cartridge mouth can be determined empirically. It is dependent on many variables, mainly on the curling tendency of the film, which in turn is influenced, for example, by its thickness or the nature of its coating, the kind of cutting or the perforations, but also on the angle of the cartridge mouth in relation to the periphery of the cartridge, the stiffness of the cartridge lining and the spacing of the flattened portion from the cartridge mouth. These factors naturally cannot all be calculated and are subject to great fluctuations which are, however, at least partially cancelled out, whereby it is assured that the method can be carried out satisfactorily. This empirical determination is however a strictly routine measure and does not involve inventive ingenuity.
  • FIGURE 1 shows the film spool in side elevation
  • FIGURE 2 shows the film spool inside the cartridge with the end of the film pushed in
  • FIGURES 3 to 5 show cross-sections of the film spool and cartridge for illustrating the separate steps in the threading and fixing operations.
  • the fil m spool 1 has a core 2 with flattened portions 3. Holding projections 5 and wedge-shaped diverting means 6 are arranged in a slot 4.
  • the spool is provided with flanges indicated at 7, 'and a turning knob 8, which is provided with a marking 9 indicating the position of the flattened portions 3.
  • FIGURE 2 shows a film 10 with a tongue 12 having a perforation 11 pushed into the opening 13 of the cartridge 14, the film projecting into the slot 4.
  • the flattened portion 3 is in a suitable position relative to the cartridge mouth 13, so that the end of the film 10 contacts the flattened portion 3 on being introduced.
  • FIGURE 5 shows how the film 10 is hooked in the holding projection 5.
  • a film cartridge as set forth in claim 3 wherein the diverting means comprises a pair of axially arranged projections extending from the ends of said slot with a space inbetween them, and said pair of hook means extend in opposite directions from each other.
  • a method of threading and securing films, more especially miniature films having a perforated end, inside a cartridge having a mouth for insertion of the film and a film spool with a longitudinal slot in its core having holding projection means therewithin comprising the steps of aligning a portion of the core remote from said slot with the mouth of the cartridge, inserting the perforated end of the film through the mouth until it abuts the aligned portion of the core, rotating the film spool a portion of a turn until the end of the film springs into the slot, and pushing the film into the slot to engage the perforated end on the holding projection means whereby it is secured thereto for winding.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Cameras Including Film Mechanisms (AREA)
  • Photographic Developing Apparatuses (AREA)
US719897A 1967-04-13 1968-04-09 Film cartridge and spool and method of attaching film to the spool Expired - Lifetime US3481552A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA0055438 1967-04-13

Publications (1)

Publication Number Publication Date
US3481552A true US3481552A (en) 1969-12-02

Family

ID=6939997

Family Applications (1)

Application Number Title Priority Date Filing Date
US719897A Expired - Lifetime US3481552A (en) 1967-04-13 1968-04-09 Film cartridge and spool and method of attaching film to the spool

Country Status (7)

Country Link
US (1) US3481552A (en:Method)
JP (1) JPS4841571B1 (en:Method)
BE (1) BE713596A (en:Method)
CH (1) CH479084A (en:Method)
FR (1) FR1567353A (en:Method)
GB (1) GB1179988A (en:Method)
NL (1) NL6805310A (en:Method)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955555A (en) * 1983-10-31 1990-09-11 Eastman Kodak Company Leader-retracting film magazine and method for enclosing film
US5295634A (en) * 1991-11-18 1994-03-22 Eastman Kodak Company Film cassette with spool core having fastening hook
US5295635A (en) * 1992-08-28 1994-03-22 Eastman Kodak Company Spool to film attachment
US5419507A (en) * 1990-07-17 1995-05-30 Agfa-Gevaert Aktiengesellschaft Reel for strip-like recording substrates, in particular for photographic films
US5555067A (en) * 1993-06-25 1996-09-10 Fuji Photo Film Co., Ltd. Photographic film separating device and separation method
US5566897A (en) * 1993-05-18 1996-10-22 Fuji Photo Film Co., Ltd. Photographic film take-up device and method
US5573196A (en) * 1993-12-22 1996-11-12 Eastman Kodak Company Cartridge and method for attaching or detaching a filmstrip to a film cartridge
US5573201A (en) * 1992-07-15 1996-11-12 Fuji Photo Film Co., Ltd. Photographic film cassette and apparatus and method of loading and removing photographic film in association with the cassette
US5617168A (en) * 1995-05-01 1997-04-01 Eastman Kodak Company Camera with spool positioning mechanism
US5933657A (en) * 1995-08-29 1999-08-03 Eastman Kodak Company Making of film scrolls for prewind cameras
USD629884S1 (en) 2009-12-16 2010-12-28 Water Pik, Inc. Powered irrigator for sinus cavity rinse

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167318A (en) * 1977-07-25 1979-09-11 Polaroid Corporation Film assemblage of the self-developing type together with apparatus for processing thereof
US4145133A (en) * 1977-07-25 1979-03-20 Polaroid Corporation Film assemblage of the self-developing type together with apparatus for processing thereof
US4239164A (en) 1978-12-18 1980-12-16 Eastman Kodak Company Light lock for roll dispensing container
DE3119936A1 (de) * 1981-05-19 1982-12-16 Agfa-Gevaert Ag, 5090 Leverkusen Filmspule mit haltezapfen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2017160A (en) * 1933-10-11 1935-10-15 Eastman Kodak Co Light tight film package for cameras

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2017160A (en) * 1933-10-11 1935-10-15 Eastman Kodak Co Light tight film package for cameras

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955555A (en) * 1983-10-31 1990-09-11 Eastman Kodak Company Leader-retracting film magazine and method for enclosing film
US5419507A (en) * 1990-07-17 1995-05-30 Agfa-Gevaert Aktiengesellschaft Reel for strip-like recording substrates, in particular for photographic films
US5295634A (en) * 1991-11-18 1994-03-22 Eastman Kodak Company Film cassette with spool core having fastening hook
US5573201A (en) * 1992-07-15 1996-11-12 Fuji Photo Film Co., Ltd. Photographic film cassette and apparatus and method of loading and removing photographic film in association with the cassette
US5632452A (en) * 1992-07-15 1997-05-27 Fuji Photo Film Co., Ltd. Photographic film cassette, and apparatus and method of loading and removing photographic film in association with the cassette
US5295635A (en) * 1992-08-28 1994-03-22 Eastman Kodak Company Spool to film attachment
US5566897A (en) * 1993-05-18 1996-10-22 Fuji Photo Film Co., Ltd. Photographic film take-up device and method
US5555067A (en) * 1993-06-25 1996-09-10 Fuji Photo Film Co., Ltd. Photographic film separating device and separation method
US5573196A (en) * 1993-12-22 1996-11-12 Eastman Kodak Company Cartridge and method for attaching or detaching a filmstrip to a film cartridge
US5617168A (en) * 1995-05-01 1997-04-01 Eastman Kodak Company Camera with spool positioning mechanism
US5933657A (en) * 1995-08-29 1999-08-03 Eastman Kodak Company Making of film scrolls for prewind cameras
USD629884S1 (en) 2009-12-16 2010-12-28 Water Pik, Inc. Powered irrigator for sinus cavity rinse

Also Published As

Publication number Publication date
GB1179988A (en) 1970-02-04
FR1567353A (en:Method) 1968-05-16
BE713596A (en:Method) 1968-08-16
NL6805310A (en:Method) 1968-09-25
CH479084A (de) 1969-09-30
JPS4841571B1 (en:Method) 1973-12-07

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